Spring 2024 Presentations

Check this page periodically to learn about the Presentations scheduled for the Spring meeting.

Please Note: This is a only a listing of the presentations and

Opening Session

Mini-Expo Vendor

  • 3M
  • American Wire Group
  • Burns & McDonnell
  • Cable Testing Laboratories
  • Doble Engineering
  • Eaton
  • EHV Power
  • EJ
  • Elecnor Hawkeye, LLC
  • G&W Electric Co.
  • Highvolt
  • Iljin Electric USA, Inc
  • InfraSource
  • Kinectrics
  • LS Cable Systems American, Inc.
  • Luna Innovations
  • NKT Inc
  • Novinium: A Southwire Company
  • Optics 11
  • Pfisterer
  • Phenix Technologies
  • Polywater
  • Prysmian
  • Richards Manufacturing
  • Smart Grid Solutions
  • Sumitomo Electric
  • Taihan Electric USA
  • TE Connectivity
  • The HJ family of companies
  • UL
  • Underground Solutions, Inc.
  • United Pacific Projects
  • USi
  • W.A. Chester, LLC
  • Wilson Construction Co.

Subcommittee A – Cable Construction and Design – Monday, May 13, 2024, 9:15 AM – 12:15 PM

  • 9:15-9:25 AM Chairman’s Opening Remarks and Announcements
  • 9:25-10:00 AM “Insulation Materials for MVDC and HVDC Cables: From Design to Test” by Mohamad Baferani, UL Solutions This presentation provides a review of cable insulation materials as the most critical component in the structure of cables for medium voltage (MV) and high-voltage (HV) direct current (DC) cable applications.  The focus is a comparative study of two prominent extruded insulation materials: cross-linked polyethylene (XLPE) and polymer-based nanocomposite dielectrics, such as ethylene propylene rubber (EPR) and XLPE nanocomposites, specifically for DC applications. Electrical characterizations of materials relevant to DC cable operation will be evaluated, providing insights into their properties and performance. Furthermore, the presentation will cover the rigorous testing procedures and qualification standards required to ensure the reliability and long-term performance of complete cable systems. Emphasis will be placed on the stringent requirements and guidelines that must be met to guarantee the safe and efficient operation of MV/HV DC cable installations. Through this presentation, attendees will gain an understanding of the state-of-the-art DC cable insulation technologies, their comparative advantages, and the critical qualification processes necessary for successful MV/HV DC cable deployment.
  • 10:05-10:15 AM “Water Treeing in High Voltage Wet Cable Designs for Offshore Wind Inter Arrays”, Sverre Hvidsten1, Karl Magnus Bengtsson2, Elise Olsen, Sofie B. Hårberg3, Ingrid H Malvik3 and Mari-Ann Einarsrud3 1SINTEF Energy Research, 2Nexans Norway, 3NTNU Norwegian University of Science and Technology, Department of Materials Science and Engineering Traditionally high voltage subsea cables have been protected from seawater by an internal extruded sheath of lead metal. For floating wind applications such cables are not applicable due to bad dynamic mechanical performance of the lead. Also, should lead be made subject to authorization under REACH, internal lead sheathing in underground and notably subsea cables may be prohibited as of 2028 in the EU. Alternative cost-effective cable constructions include so-called wet designs having no metallic sheathing, allowing water molecules to enter the cable core during service. Two high voltage XLPE cables with different semi-conductive cable screen materials have been subjected to a wet ageing protocol according to the recommendation in CIGRE TB 722. This includes pre-conditioning of cable cores in salt water at 55 °C followed by aging at 12.2 kV/mm (500 Hz) and 40 °C. The evaluation after ageing included a combined AC step-voltage breakdown test and time to failure, and several material characterization techniques. The results show a very large difference in AC breakdown stress values for the two cables after ageing. The vented water trees in the cable with the lowest residual breakdown stress are longer and their density is higher. However, mass spectroscopy measurements of the two semi-conductive screen materials reveal no significant difference with respect to inorganic elements. In addition. the results from scanning electron microscopy analysis show a smooth interface with no presence of contaminations between the semi-conductive cable screens and XLPE insulation. A more detailed study of the inception sites was therefore needed to be able to explain the presence of the vented trees.
  • 10:15 -10:30 AM BREAK
  • 10:30-10:55 AM Sverre Hvidsten et al. continued
  • 11:00-11:35 AM “Covered Conductor Flammability Research” by Jean Carlos (JC) Hernandez-Mejia, NEETRAC Covered conductor also known as tree wire has been used for several decades in the United States for overhead distribution system hardening. Consequently, almost all utilities in the country use covered conductor to some degree in their overhead distribution systems. Covered conductor is a critical component of power distribution systems in California. The conductors are designed to protect electrical distribution lines from the harsh weather conditions prevalent in the state, such as high winds, and storms.  Most recently, utilities in California are contemplating a considerable increase in usage of covered conductor due to their inherent capability to limit the contact current when an external agent such as a tree branch contacts the line. The limitation of the contact current by the covered conductor greatly reduces the risk of a wildfire ignition from the overhead primary distribution system. However, once the covered conductor has been deployed, there are questions that remain unanswered. They are specifically related to the flammability of covered conductor in two potential scenarios that may manifest in the field. These scenarios include understanding the flammability of the covered conductors when they are subjected to a fire/heat wave and an electric arc. The presentation will show results from a research program that led to a repeatable testing protocol which approximates actual field conditions to determine the flammability and sensitivity of covered conductors under a fire heat wave.
  • 11:40 AM-12:15 PM “Datamining Service Performance Reports” by Josh Perkel, Dexter Lewis and Nigel Hampton, EPRI Extruded insulations were introduced in the mid 1960’s to address the cost and perceived reliability issues of Paper Insulated Lead Cables.  After initial good experience the reliability was degraded by the then unknown phenomenon of water treeing. Right from the start it was observed that the poorer than anticipated performance of extruded cables was not universal to all cable designs and installations.  In the 1980’s and 1990’s multi utility collations of service performance were spearheaded by the Cable Engineering Committee of the AEIC (Association of Electrical Illuminating Companies) and published in the ICC Minutes. The purpose of these reports was to provide basic information to inform the discussions on cable performance during the transition from paper insulations to extruded insulations. The AEIC reporting captured details on the insulation material, jacketing, electric stress and installation. At the time the focus was on collection of the data. Data collation and analysis was not undertaken. This presentation describes the initial results of some recent datamining activities of the ICC historical minutes to create a service performance / failure database. It then details the analysis undertaken to get a better understanding of the underlying drivers. The analysis of the statistical significance of the cable design factors will be discussed.
  • 12:15 PM Adjourn

Subcommittee B – Accessories – Tuesday, May 14 , 2024, 2:00 PM – 5:30 PM

  • 2:00 PM: Chairman’s opening remarks and announcements
  • 2:15 – 2:40 PM: “Innovative Dry Type Outdoor Terminations for Sustainable High and Extra High Voltage Cable Systems”, Sebastian Ebert, Andreas Weinlein (Sudkabel, Germany). Dry outdoor terminations are becoming increasingly important. The advantages are unrestricted suitability in water protection areas and a smaller hazard area in the event of an accident. Such terminations can generally be installed much more easily and quickly and convince with its sustainability and practical aspects. Dry type AC solutions up to the highest operating voltage of Um = 550 kV and conductor cross sections up to 3200 mm2 are available. A distinction is made between gas-filled and gas-free variants with and without a support function. A new approach is made with an internal self-supported design which is complete dry-type and gas-free insulated. The complete outdoor termination consists of a pre-tested element made of silicone rubber with integrated field control element and shield modules according to the required creepage distance. Furthermore, the design has a sealing and a connection bolt. The supporting elements made of fibreglass-reinforced plastic are integrated inside the push-on element made of silicone rubber and provide the termination with the necessary strength with regards to its cantilever load. Several type tests acc. to IEC 60840 for voltages up to Um = 170 kV were already carried out. Acc. to IEC 60840 edition 5.1 published in 2023 the requirements of cantilever load tests for composite insulators (MML) are not applicable for such designs. Instead, a limited flexibility allows for controlled deflection and self-returning to initial position again after relief of force. Tests with reduced values of force and with deflection during operation were carried out. This design has already gained initial use and operating experience in high voltage systems and convinces operators and installation companies with its sustainability and practical aspects. Designs for higher voltage ratings than Um = 300 kV will be limited due to limited mountability.
  • 2:40 – 3:05 PM: “Thermal Performance of Commercially Available Connectors Installed on Water-blocked Cables”, Diana Ramirez-Wong (NEETRAC, USA), Sean Kennedy (TE Connectivity, USA). Accessory standards have been evolving to meet higher system requirements due to increasing system load factors, especially in certain applications such as wind farms.  There is concern in the industry, however, about the performance of connectors in these standards, as well as in operation. Here we present our investigation of several commercially available connectors to determine their thermal performance against a test protocol based on IEEE 404 Cycling Aging.
  • 3:05 – 3:30 PM: “Cable accessories in US utilities – past, present and future”, Rick Allen (Anangrid, USA)
  • 3:30 – 3:45 PM: Break
  • 3:45 – 4:15 PM : “Self-Supporting Dry-Type Outdoor Terminations – Design & Electrical Layout”, Denis Mueller, Eckhard Wendt, Thomas Klein (Strescon, Germany). XLPE cables have become widely accepted for HV and EHV cable lines and connections. These cables are dry systems without any insulating liquids or dielectric gases. At the same time, most of the HV and EHV terminations for this type of cable are still using insulating liquids and dielectric gases. While for GIS terminations the advantages of dry-type solutions are preferred in almost all voltage levels, liquids or gases are still used as an insulation medium for outdoor terminations. Gas-insulated outdoor terminations require costly leakage monitoring and oil leakage is a well-known problem for fluid-filled terminations. In addition, the high fire load and serious damage potential in the case of internal arcs demand dry-type designs. Many features of current outdoor termination designs are well-accepted and need to be kept. This mainly applies to the composite insulators which almost completely substitute porcelains for this application. Their glass fiber reinforced hollow core body with good mechanical properties provides high cantilever forces and their surface made from silicone rubber is excellent in polluted areas due to its hydrophobicity. Stress cones made from EPDM or silicone rubber are largely used as pre-fabricated insulating components in outdoor terminations. As the field stress on their outer surface exceeds the field strength of air, a surrounding insulation medium – mainly gas or oil – is used. These non-solid components can be replaced by a larger stress cone, however, there must be no air-filled gaps at the interface to the composite insulator in field-stressed areas. This has to be ensured for the complete operating temperature range as well as for all cable dimensions. The contribution shows solutions without using any non-solid insulating materials. Criteria for the design of dry-type outdoor terminations up to a maximum voltage rating of 245 kV will be presented. Field stress simulations for optimally designed stress cones over the application temperature range will be discussed.
  • 4:15 – 4:45 PM: “Maintaining the assets of an underground distribution network facing major challenges”, Lionel Reynaud (Hydro Quebec, Canada). Hydro-Québec, a key player in the Canadian energy landscape, faces a pressing challenge in maintaining its underground distribution network, largely constructed since the late 1970s. The network encounters a series of obstacles that require immediate attention and long-term planning. Logistical complexities, including extended lead times for equipment and limited available labor, complicate maintenance efforts. Addressing these challenges necessitates a comprehensive understanding of the network’s condition. This presentation aims to provide an overview of the complexities associated with maintaining the distribution network, along with the strategies being considered for sustainable infrastructure management.
  • 4:45 – 5:15 PM: “Comparison of dielectric insulating compounds for HV cable terminations – silicone oil vs. silicone gel”, Rudy Bukovnik (TE Connectivity, USA)
  • 5:15 – 5:30 PM: Chairman’s closing remarks and Adjourn

Subcommittee C – Cable Systems – Tuesday, May 14, 2024, 8:00 AM – 12:00PM

  • 8:00 – 8:15 AM Chairman’s Opening Remarks and Announcements
  • 8:15 – 8:55 AM SCE’s Vision for a Carbon-Neutral California: Assessing Feasibility and Challenges, by Hunly Chy, Senior Manager, and Tram Camba, Senior Advisor, Grid Hardening Strategy, SCE California has pledged to cut its GHG emissions and achieve carbon neutrality by 2045 to mitigate its role in climate change. SCE has conducted the Pathway 2045 analysis, which explores the energy impacts of California’s long-term decarbonization objectives on the economy and the electric sector and outlines a viable and affordable way to attain these objectives. In support of Pathway 2045, SCE will need to build a significant number of new Distribution, Sub-Transmission, and Transmission circuits within the next 20 years and bring additional power to higher demand load centers including cities such as Long Beach, Irvine, Rancho Cucamonga, and Ontario. This presentation will discuss a case study to assess the customer energy demand needs and the feasibility, costs, and risks/challenges of various traditional as well as innovative technologies to enable SCE’s 2045 objectives.
  • 8:55 – 9:35 AM Challenges of Germany’s HVDC Cable Projects: from Design to Operation, by Dr. Roland Zhang, TenneT. HVDC cable systems are used worldwide for offshore connections, interconnector, and corridor projects, in particular due to their technical advantages, e.g., high transmission capacity and distance, low losses, low environmental impact, and etc. This presentation will give one overview of Germany’s HVDC Cable projects: onshore and offshore. Because of the limited operational experience, especially for extruded HVDC cables, cable suppliers, TSOs, test institutes and further stakeholders have to face numerous and enormous challenges, i.e., from project planning, qualification, manufacturing and construction, commissioning to operation/maintenance. With regards to HVDC grid expansion with multi-terminal systems, the requirements and effects for the transmission systems are also explained in this presentation.
  • 9:55 – 10:35 AM Trenchless Construction Challenges in Dense Urban Environment, by Allison Klein, Eversource; Todd Goyette, Power Engineers; and Tennyson Muindi, Delve Underground.
  • Eversource recently completed the installation of approximately 8 miles of new 115kV transmission pipe-type cable duct line as part of their Mystic to Woburn Reliability project. Installing a new underground transmission circuit through a dense urban environment can require several different styles of construction methodology to be utilized. Some obstacles like railroad corridors and water bodies require the use of trenchless construction techniques like horizontal directional drilling and jack and bore. These construction techniques offer unique challenges and difficulties but also opportunities for creative solutions.  Unforeseen problems can require the project team to adapt and shift directions at a moment’s notice to ensure a successful installation. This presentation will present lessons learned during the completion of several trenchless crossings with an emphasis on one particularly challenging location that required a unique solution to recover the drilling equipment and salvage the crossing.
  • 10:35 -11:15 AM Calculation Force to Pull Cables into Pipes, update theory from 1953, by Willem Griffioen, Plumettaz SA.
    A complete theory is given of force build-up in cables pulled in pipes, beyond “classic” Rifenburg equations, including large radius bends and/or pushing the cable, following the outside facing wall of the bend. Also, 3D-bends are treated. This is used in software, where besides gravity friction and capstan effect also “waving” the cable during pushing and the effect of cable stiffness in bends and undulations in the pipe are taken into account. Not only pulling and pushing, also other installation techniques are evaluated, like those making use of fluid propelling (blowing and floating).
  • 11:15 – 11:55 AM Life Cycle Analysis (LCA) comparison of Cable Rejuvenation Versus Cable Replacement, by James Steele, Bo Quick, and Wayne Chatterton, Southwire. Cable rejuvenation has been known for years to restore dielectric strength in failing underground cables. It chemically desiccates the water from the insulation of solid dielectric cables (PE and EPR).  A third-party life cycle analysis (LCA) has been completed comparing the environmental impact of cable rejuvenation versus cable replacement, and this study indicates the life cycle greenhouse gas impact for rejuvenation is 99% lower than cable replacement. This presentation will briefly describe the rejuvenation process and then describe the results from the LCA study.
  • 11:55 AM – 12:00 PM  Closing Remarks

Subcommittee D – Generating Station and Industrial Cables – Wednesday, May 15, 2024, 8:00 AM – 12:30 PM

  • 8:00 – 8:30 AM – Opening Remarks and Administrative Presentation
  • 8:30 – 9:15 AM – Very Low Frequency (VLF) Tan Delta Testing of Medium Voltage Cable – Wayne Walters, Manager of Engineering Services, Industrial & Construction, Prysmian Group. Very low frequency testing (VLF) is a term used when referring to the testing of cables at 0.1 – 1 Hz with 0.1Hz being the most commonly used frequency. Using very low frequencies in practice, allows for smaller equipment that is portable especially when compared to power frequency (60 Hz) equipment as the power requirements are much lower. The use of ac-VLF equipment continues to grow in popularity both for maintenance testing and acceptance testing of new cable installations. This paper covers methods of testing at VLF and some of the advantages and disadvantages of doing so. Wayne Walters has over 40 years of experience in system engineering, product management, development, and business development.  Mr. Walters joined Prysmian Group (General Cable) in 2014 and currently serves as Manager of Engineering Services focused on the industrial cable solutions.  Prior to joining Prysmian Group, Mr. Walters held staff and leadership positions at SkyFiber, ECI Telecom, ADC Telecommunications, and Tellabs.  Mr. Walters holds patents on adaptive systems.   Mr. Walters received a Bachelor of Science in Electrical Engineering with a Minor in Philosophy and Religion from Rose-Hulman Institute of Technology in Terre Haute, Indiana.
  • 9:15 – 10:00 AM – VFD Cables: Essential or Overkill? – Steve Wetzel, Principal Engineer, Southwire Company. Variable frequency drive (VFD) systems can experience problems with both radiated and non-radiated electromagnetic interference (EMI) which decreases system productivity. If EMI is not properly managed, it can lead to operational problems and potentially expensive damage for motors, drives, and other electrical devices within the facility. We will explore how VFD cable mitigates many of these risks. We will identify three critical components to a VFD cable and explore how each component works to control the adverse effects of the drive’s high frequency pulse width modulated waveforms.Bio: Steve Wetzel has an electrical engineering degree from the University of Wisconsin – Madison and is a Principal Engineer for Southwire Company. He is a member of the Insulated Cable Engineers Association (ICEA) and is chair of the working group responsible for creating a Variable Frequency Drive (VFD) cable standard. Steve started learning about VFD systems and cables when he worked for Siemens, who created the first VFD cable construction in the 90s. He has been involved in VFD systems from the cable perspective ever since. Steve presents at customer and distributor training sessions and industry events each year on the role of the cable in drive systems. He has presented at many Rockwell Automation Fairs as well as at Siemens, Danfoss, and ABB events. He has authored numerous application notes on various aspects of the inverter to motor cables.
  • 10:15 – 11:30 AM – Fourier Transform Infrared Spectroscopy (FTIR) – Alex Sorensen, Materials Development Manager, Marmon Innovation & Technology. The presentation will cover the capabilities, limitations, and uses of Fourier Transform infrared spectroscopy (FTIR) as it relates to evaluating polymeric compounds and discrete ingredients.  The presentation will also attempt to dispel the ambiguity surrounding the extent of FTIR’s effectiveness at determining whether two compounds are identical. The first part of the presentation will explain how an FTIR functions and what an FTIR measures. The second part of the presentation will summarize test results from the comparison of two compounds.  The tests include FTIR, physical properties, wet electrical performance, flammability, and performance during air aging tests.  Bio:Alex Sorenson received his Bachelor of Science from Ferris State University in Rubber Engineering in 2015.  He has worked for Marmon Innovation and Technology in East Granby, Connecticut for 9 years in a series of roles of increasing responsibility.  He is currently the Materials Development Manager and his responsibilities include the formulation of new rubber and plastic compounds, evaluation of new materials, and laboratory batch mixing processes.  Alex is a member of ICEA, IEEE and ASTM.
  • 11:30 – 12:00 PM: Closing remarks and general discussion

Subcommittee F – Field Testing and Diagnostics – Monday, May 13, 2023, 2:00 PM – 5:30 PM

  • 2:00 PM – 2:10 PM Chairman’s Opening Remarks and Announcements
  • 2:10 PM – 2:45 PM “Water Tree Growth in the Context of Diagnostics II”, Nigel Hampton, EPRI, Extruded insulations were introduced in the mid 1960’s to address the cost, reliability and weight issues associated with the established paper insulated cable designs. The initial installations performed well for a number of years until the failure rate increased (see presentation scheduled for Sub A). The cause of the increase was ascribed to water trees that were observed in the EPR, HMWPE, and XLPE insulations. These early water trees and those of later vintages are the drivers for much of the diagnostic testing currently being undertaken. Like the first presentation, given in the Autumn of 2023, this talk does not intend to discuss the fundamentals of water trees; however, it builds on their impacts upon to electric stress and breakdown strength to look at the interaction of water trees with diagnostic assessments.
  • 2:45 PM – 3:20 PM “Case Study : PD commission test of a long 400kV feeder”, Rene Hummel, Kinectrics, This case study shows the commissioning test of a 3-phase 400 kV XLPE cable systems using on-site Partial Discharge (PD) testing. Each cable system is over 22 km/ 14 miles long and consists of 33 cross-linked joints and 6 end terminations. To perform the PD commission testing, the cable systems was energized with a resonant test set to 330 kV for a period of 60 minutes. Three teams of technicians simultaneously measured PD at different cable joints using high-frequency current transformers (HFCTs) and mobile PD test equipment. This process is often referred to as “joint-hopping.”
  • 3:20 PM – 3:35 PM Break
  • 3:35 PM – 4:10 PM “Development and field experience of an UHF- measuring device for PD detection and localization on 110-kV cable terminations”, Robert Bach*, Rouven Berkemeier, South Westfalia University of Applied Science, Soest Tom Suchanek, Bernd Igelbuescher, Bayernwerk Netz GmbH, Regensburg. Standard PD-Measurement according to IEC 60270 on layed high voltage cable systems is used along with on-site withstand voltage tests for long time. This contributes to higher safety and reliability of the cable connections. Nevertheless it is difficult to explicitly detect PD in the area of the termination on longer cable lines. Corona, reflections, damping and dispersion limit the clarity to decide whether there is really PD in the termination or not. On the other hand it is of high importance to come to a clear statement about the operational safety of terminations, because PD can lead to severe damages and destruction in the close vicinity of the Terminations. Based on this, a UHF detection and localization system for the testing of 110-kV-cable termination has been developed and tested in the lab during the past three years. The results were so promising that some tests in the field were organized with different on-site test voltages (DAC and Resonant) and even under operating voltage. This presentation gives insight into the capability of the system and the results of different measurements and tests in the Lab and in the field.
  • 4:10 PM – 4:45 PM “A Proactive Data-Driven Approach for Managing Aging Underground Cable Infrastructure”, Darren Byrne, Southwire. Today, the US electric utility industry is faced with a growing dichotomy between improving grid resiliency and reliability while dealing with ever aging infrastructure that is often being operated beyond its intended designed life. A critical part of this aging infrastructure is the electric grid that supplies power to our nation. Upon assessment of tens of thousands of aged underground cable segments that make up the grid, research shows that over 60% of these aging assets still perform as well today as they did when they were first installed more than 30 years ago. The challenge, however, is identifying which of the cable systems still function correctly, which need repair, and which are candidates for rejuvenation or replacement. Predictive and prescriptive data risk modelling used in combination with underground cable health assessment technology is used to identify those at-risk cable assets and determine those, that with minimal remediation, can still operate as designed and like-new. There are currently US electric utilities that apply a 2009 Federal Energy Regulatory Commission (“FERC”) order for a betterment process that diagnoses and treats these assets to extend grid life significantly, allowing for capitalization of the process as a recommended accounting treatment.  This can all be accomplished with less capital outlay when compared to reactive wholesale cable replacement or other run-to-failure methods. In other situations, state regulatory bodies endorse a betterment approach for utilities to improve the reliability of their underground distribution infrastructure-stretching the reach and effectiveness of capital expenditures related to the rehabilitation of underground power systems. This approach ultimately benefits ratepayers, with lower prices and higher reliability, and utility stakeholders in terms of high customer satisfaction and improved capital performance.
  • 4:45 PM – 5:20 PM “Methods and Experience of Diagnostic Testing to Support Asset Management of Feeder Type Cable Systems Using VLF Tan δ Measurements”, Jean Carlos (JC) Hernandez-Mejia (Georgia Tech) and Nigel Hampton (EPRI). It is becoming increasingly common for utilities to test three phase systems as part of their VLF Tan δ diagnostic programs. However, the criteria provided to date by industry practice only presents guidance at the individual power cable system or “Phase” level and do not expressly discuss how the three phases can be considered as a single feeder section or in other words a “Feeder” level assessment. The presentation will share experience on how to assess cable systems at the “Feeder” level using VLF Tan δ measurements including the combination of features using novel methods for an estimation of compounded “Health Index” that can be used for prioritization of asset management strategies. A case study with tangible results will also be presented and discussed with the group.
  • 5:20 PM – 5:30 PM Closing Remarks

Subcommittee G – Transnational Luncheon Registration Required, Tuesday, May 14, 2024, 12:15 PM – 2:00 PM

1. Decommissioning of SCFF Cables in France using a Non-Invasive, Environmentally Friendly Solutionby Carlo Scarlata (Tibio), Jake Gelhard (EHV Power), Canada
Abstract: The decommissioning of old SCFF cables poses significant challenges and environmental risks due to the substantial volume of dielectric oil they contain. Simply blowing them out using compressed air and abandoning them in place is not a viable option, as most of the oil remains trapped within the cable insulation and will eventually leak into the surrounding area. Physical removal through excavation is prohibitively expensive and often impractical or even impossible, especially in dense urban or industrial environments. A more effective solution involves the bioremediation of old SCFF cables using an innovate, environmentally friendly approach. This presentation will cover a bioremediation project involving the decommissioning of three single-core SCFF cables in France. The same technology has been used to successfully clean over 120km of cables in Europe.

2. Case Study of 110kV HV Cable Installation: A Closer Look at the “Pyrzowice Airport, Poland” project with Operating DTS Systemby Iga Korczynska, Tele-Fonika Kable S.A., Poland
Abstract: Tele-Fonika Kable S.A. successfully delivered 110kV power cables for the “Pyrzowice Airport” project, where the DTS (Distributed Temperature Sensing) system operates effectively and also conducted internal, specific simulations of HV and MV cable compatibility with the system, replicating cable operation conditions in the field. Various cable laying techniques were employed during the installation of the cable line.

3. The rise of the offshore wind market in Japan – Ishikari bay offshore wind project by Kazuhiro Yoneya, Furukawa Electric, Japan.
Abstract: Japan is rich in marine resources and has high potential for offshore wind power generation, but the formation of large-scale projects is still in its infancy. Total offshore wind capacity in operation was still below 300MW at the end of 2023. On the New Year day this year, Ishikari bay offshore wind, second 100 MW-class offshore wind farm, has begun operation. This presentation provides you high-level information on this newly operated wind farm.

4. Verification test on replacement method from HPFF cable to 1c XLPE cable in Tokyo by Shoji MASHIO, Sumitomo Electric, Japan
Abstract: Retrofit system and construction technology have been innovated to replace HPFF cables with XLPE cables recently. One of the challenge in Japan is develop installation method to install three 275kV XLPE cables in the existing steel pipe and to manage the thermo-mechanical movement of cable, mitigating the difference in axial force applied on the joint, a movable support structure and reaction force increasing device were developed. The performance was verified through full-scale sample tests and it was confirmed that the force difference is within the acceptable range.

5. Recently a 4.2km long, 400kV cable line has been completed in Norway under challenging conditions in Norway by:Henk Geene, Prysmian, The Netherlands
Abstract: Recently a 4.2km long, 400kV cable line has been completed in Norway under challenging conditions. The complete line is installed in a tunnel, including a shaft of 30m depth. The tunnel has been blasted and is constructed with an inclination of 1.1% up to 10%, which is challenging for the mechanical thermo-mechanical design. Special attention was paid to the cable and joint clamping. The presentation will give an overview of the special tests performed and the realization of the project.

6. Successful commissioning of HVAC 220kV export cable system in HOLLANDSE KUST NOORD & WEST alpha project by Shawn (Seokhyun) Nam, LS Cable Systems America, Inc, USA
Abstract: The project consists in 2 offshore grid connections in Holland. One is to connect HKW Alpa offshore platform to shore landing and the other is from HKN offshore platforms to shore landing, each with a capacity of 700MW. The cable for the 2 projects was manufactured and quality assured by LS Cable & System, which consists of total 210km of submarine 220kV AC export cable, 12km of land cable and 1.7km of platform cable. In this presentation, technical breakthrough and lessons learned after commissioning the cable system will be briefly described.

7. Integrated Distributed Temperature Monitoring System for Innovative Direct Buried Smart MV Cable Systems by Morten Gøytil (Lede AS), Norway, Rene Nijland (EOSS, Prysmian), The Netherlands, Landry Molimbi (EOSS, Prysmian), Italy
Abstract: EOSS (Electronical & Optical Sensing Solutions) and Prysmian produce MV cables with embedded fiber optic enabling installation of a combined & integrated monitoring solution at a Distribution System Operator (DSO), Lede AS in Norway, Northern Europe. The state-of-the-art PRY-CAM monitoring solution consists of Distributed Temperature Sensing (DTS) with an integrated Real Time Thermal Rating (RTTR) calculation engine. Thanks to this unique smart MV cable concept with embedded fibers, we can now understand better and in real-time the temperature profile of the distribution feeder. In addition, the DSO can closely monitor maximum load that this MV cable design can supposedly withstand while paying close attention to nearby utility crossings (e.g. steam and water pipes). It will also give the DSO the possibilities of dynamic utilization of the installed cables based on load and temperature. Some unique aspects of the project are that the MV cables have already been installed but not energized with the DTS fully operational and monitoring the distribution feeder to allow the DSO to establish a true baseline before the 2025 energization. The DSO can gain a deeper understanding of the “current” conditions of the feeders as well as potential impacts of external factors prior to starting to operate the MV cable system.

8. Upcoming international meetings 2024 / 2025 by Paul Leufkens

Networking Luncheon – Registration Required – Monday, May 13, 2024, 12:30 PM – 2:00 PM

Educational Program – Practical Engineering – US utilities T&D actual project cases review, Wednesday, May 15, 2024, 1:00 – 5:00 PM

Training Session

Tuesday 7:00 – 8:00 AM IEEE SA Mandatory Training for Standard Development Officers (Required of all ICC AdCom members and Working Group officers; all are welcome)

Wednesday 7:00 – 8:00 AM IEEE MyProject training (Required of Working Group officers who have not participated in any ICC AM training within one year of appointment; all are welcome)